Experiments in Chesapeake Bay and the 



Patuxent River on the effect of underwater 



30-pound charges of TNT on certain fish, 



oysters, and blue crabs. Crabs were held in 



cages on the bottom at various distances 



(25-150 feet) from the charge. Data from 



crabs was somewhat erratic but indicated 



that lethal damage is limited to a radius of 



about 150 feet. 



1953. The commercial fisheries of Maryland. 



Chesapeake Biological Laboratory, Solomons, 



Md., Educational Series No. 30, 45 p. 



A section on blue crabs deals with the 

 industry, fishery, life cycle, causes of 

 decline, and problems of management. 



Chidester, F. E. 



1911. The mating habits of four species of the 

 Brachyura. Biological Bulletin (Woods Hole), 

 vol. 21, No. 4, p. 235-248. 



Describes the mating habits of the blue 

 crab before the puberty molt of the female 

 and positions during subsequent copu- 

 lation. 



Chipman, Walter A. 



1960. Biological aspects of disposal of radio- 

 active wastes in marine environments, p. 3-15. 

 In Disposal of radioactive wastes, vol. 2. 

 International Atomic Energy Agency, Vienna. 

 Only small amounts of the radioactivity of 

 mixed fission products administered 

 entered the body tissues of blue crab; most 

 was in the internal organs. Stronium radio- 

 isotopes accumulated in the shell but not in 

 the muscles. Molting resulted in loss of 

 radioactivity. Caesium-137 was concen- 

 trated in the edible meats. 



Chisolm, Julian J., II. 



1941. Hard shell— soft shell. Natural History, 



vol. 47, No. 1, p. 50-53. 



Eight photographs of the various stages in 

 the molting process of a blue crab with one 

 claw. Illustrates the powers of regeneration 

 of a lost appendage. Shedding is complete 

 after 43 minutes, and shell hardens in 2 to 

 3 days. 



texanus Boschma in the blue crab (Callinectes 

 sapidus). Proceedings of the 22nd Annual 

 Conference, Southeastern Game and Fish 

 Commissioners, p. 272-275. 



The author concluded that heavy infesta- 

 tion of Loxothylacus could appreciably 

 deplete the blue crab population. Infested 

 juveniles were altered sexually and those 

 with externae did not molt. Ventral oyster 

 fouling of parasitized crabs was observed. 



Churchill, Edward P., Jr. 



1918. Conservation of the blue crab of 

 Chesapeake Bay. Conservation Commission of 

 Maryland, Official Bulletin, vol. 5, p. 9-14. 

 Depletion of the supply, wastefulness of 

 fishery, legislation and restrictions on fish- 

 ery. Also includes a brief account of life 

 history. 



1920. Crab industry of Chesapeake Bay. U.S. 

 Commissioner of Fisheries, Report for 1918, 

 Appendix 4, 25 p. 



Growth and size of blue crab industry, 

 crabbing grounds, seasons, regulations, 

 methods of capture, preparation for mar- 

 ket, and prices. 



1921. Life history of the blue crab. Bulletin 

 of the U.S. Bureau of Fisheries for 

 1917-1918, vol. 36, p. 91-128. 



An early classical account of distribution, 

 life history, growth, migrations, longevity, 

 and effects of winter temperatures on 

 habits. Molting sequence and internal and 

 external sexual characteristics are illus- 

 trated. 

 1942. The zoeal stages of the blue crab, 

 Callinectes sapidus Rathbun. Chesapeake 

 Biological Laboratory, Solomons, Md., Publi- 

 cation No. 49, 26 p. 



Zoeal stages obtained by hatching and 

 collecting indicated that the blue crab has a 

 prezoeal and five zoeal stages. The zoea and 

 the megalops are described and pictured. 

 Early stages were most abundant at the 

 surface and the later stages at the bottom 

 of lower Chesapeake Bay. It requires about 

 1 month for the crab to pass through the 

 zoeal stages. 



Christmas, J. Y. 



1969. Parasitic barnacles in Mississippi estu- 

 aries with special reference to Loxothylacus 



Cochran, Doris M. 



1935. The skeletal musculature of the blue 

 crab, Callinectes sapidus Rathbun. Smith- 



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